| 品牌:Agilent 7890 | | 型号:2m*4mm | | 加工定制:是 | |
| 规格:3m*3mm | | 长度:2000 | | 内径:3 | |
| 膜厚:2.0 | | Agilent 7890:GDX-102 | | 甲醇:工作场所空气有毒物质 | |
| 杂醇油:、丙醇和辛醇 | | 氯乙烯:苯系物 | | 乙醛:环氧乙烷 | |
GBZ/T 300的本部分规定了工作场所空气中甲醇、丙醇和辛醇的溶剂解吸-气相色谱法,甲醇的热解 吸-气相色谱法。 本部分适用于工作场所空气中蒸气态甲醇、丙醇和辛醇浓度的检测。
a) 色谱柱:2m×4mm,GDX-102;
b) 柱温:140℃;
c) 气化室温度:180℃;
d) 检测室温度:200℃;
e) 载气(氮)流量:35mL/min。
5.3 试剂
5.3.1 GDX-102,色谱固定相,60 目~80 目。
5.3.2 甲醇,20℃时,1μL 液体的质量为 0.7915mg
This section of GBZ/T 300 specifies the solvent desorption gas chromatography method for methanol, propanol, and octanol in workplace air, as well as the thermal desorption gas chromatography method for methanol. This section is applicable to the detection of the concentrations of gaseous methanol, propanol, and octanol in the air of the workplace.
a) Chromatographic column: 2m × 4mm, GDX-102;
b) Column temperature: 140 ℃;
c) Gasification chamber temperature: 180 ℃;
d) Testing room temperature: 200 ℃;
e) Carrier gas (nitrogen) flow rate: 35mL/min.
5.3 Reagents
5.3.1 GDX-102, chromatographic stationary phase, 60-80 mesh.
5.3.2 Methanol, at 20 ℃, the mass of 1 μ L liquid is 0.7915mg